Improvement in wept bobbins



@gleiten te'tte stut @ffire- IMPROVEMENT IN WEFT BOBBINS.

dlgevdgeh1t1e'-nfemt tu it time Eaters atmt uutnmtug tnt tt tigt time.

TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

Be it known thatY I, WILLIAM E. BASS, of Lawrence, inthe county of Essex, and State of Massachusetts, have inventedel new and useful Improvement in Weft Bobbinsg' and do hereby declare the same to be fully described in the following specification, andrepresented in the accompanying drawings, of which- Figure l is a side view; and

Figure 2, a longitudinal section of a bob'bin-made in accordance with my invention.

i Weft bobbins, in order to prevent a cop or body of yarn when wound on them from slipping or being moved out of place on them while in motion with a shuttle during the process ot' weaving with such bobbins, have had what are termed enlarged' or bulbous ends, and also grooves cut 1n their barrels`v at intervals. I disclaim the invention of such a bobbin, which is represented in the patent of Oliver Pearl, said patent being numbered 53,665, mine being specially designed for the weaving of woollen goods, and to overcome ditlicultiesincident -to such a grooved or bulb-headed bobbin. It has been found that the bulb head causes the yarn to catch and pile on it, and, in consequence thereof, to break while being spun and wound on the\bobbin. It has also beenjfound that* the grooves, although answering for cotton land ine thread, are of little or no service for holding vv'the cop in place in case it is formed of woollen yarn, for the cops, prior to being woven, have to be steamed, the steaming process causes such an expansion of the cop at its bore as to render it 'easily removable from the bobbin, and the grooves of litt-le or no use i'n preventing such removal. V

In carrying out my invention, I make the bobbin of a series of swells or enlargements of its body, they being arranged as represented at 'a a a in the drawings, wherein A is the body and B the head ofthe bobbin. I also make that part, I7, of the body, which extends from -the upper swell a to the' end b,wit'hoi1t any bulb or enlargement, but slightly tapering, it being smallest at such end. This enables the yarn, while being spun and wound on the bobbin, to do so without catching and improperly piling on or near the end. It also enables the yarn to be drawn otf the bobbin easily while it may be in the act of passing through between the warps in the process of weaving cloth. The swells hold the cop firmly in place, and besides this they add strength to the bobbin, and do not weaken it 'as grooves do. The grooves render the bobbin easily broken, especially when trodden upon, or when it may fall upon an object.

I claim the improved weft bobbin as made, with theseries of swells aa a arranged on its body, as set forth.

I also claim the arrangement of the taper of the portion with the lseries of swells a a. a of the body' of .the bobbin, as set forth.- Y

I WILLIAM E. BASS,

Witnesses:

R. H. EDDY, A F. P. HALE, Jr. 

